feat:add mysql and sqlite support

[czyt]

No description provided.

[unknwon]

Thanks for the PR! However, it is intentional to only support PostgreSQL (a single DB backend with minimal maintenance burden). I may revisit this decision later so I'll keep this open for now.

[czyt]

Thanks for the PR! However, it is intentional to only support PostgreSQL (a single DB backend with minimal maintenance burden). I may revisit this decision later so I'll keep this open for now.

ok,I prefer to use sqlite as database in small pjoject like you prefer postgres.😊

[unknwon]

I may actually consider using embedded PostgreSQL (to support running out-of-the-box) instead of introducing another DB backend to support it.

[unknwon]

I'm pretty certain that I'll proceed with the embedded PostgreSQL approach, thus closing this one and thanks again!